include/asm-ia64/sn/hcl.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 1992-1997,2000-2003 Silicon Graphics, Inc. All rights reserved.
   7  */
   8 #ifndef _ASM_IA64_SN_HCL_H
   9 #define _ASM_IA64_SN_HCL_H
  10
  11 #include <linux/fs.h>
  12 #include <asm/sn/sgi.h>
  13
  14 extern vertex_hdl_t hwgraph_root;
  15 extern vertex_hdl_t linux_busnum;
  16
  17 void hwgraph_debug(char *, const char *, int, vertex_hdl_t, vertex_hdl_t, char *, ...);
  18
  19 #if 1
  20 #define HWGRAPH_DEBUG(args...) hwgraph_debug(args)
  21 #else
  22 #define HWGRAPH_DEBUG(args)
  23 #endif
  24
  25 typedef long            labelcl_info_place_t;
  26 typedef long            arbitrary_info_t;
  27 typedef long            arb_info_desc_t;
  28
  29
  30 /*
  31  * Reserve room in every vertex for 2 pieces of fast access indexed information
  32  * Note that we do not save a pointer to the bdevsw or cdevsw[] tables anymore.
  33  */
  34 #define HWGRAPH_NUM_INDEX_INFO  2       /* MAX Entries */
  35 #define HWGRAPH_CONNECTPT       0       /* connect point (aprent) */
  36 #define HWGRAPH_FASTINFO        1       /* callee's private handle */
  37
  38 /*
  39  * Reserved edge_place_t values, used as the "place" parameter to edge_get_next.
  40  * Every vertex in the hwgraph has up to 2 *implicit* edges.  There is an implicit
  41  * edge called "." that points to the current vertex.  There is an implicit edge
  42  * called ".." that points to the vertex' connect point.
  43  */
  44 #define EDGE_PLACE_WANT_CURRENT 0       /* "." */
  45 #define EDGE_PLACE_WANT_CONNECTPT 1     /* ".." */
  46 #define EDGE_PLACE_WANT_REAL_EDGES 2    /* Get the first real edge */
  47 #define HWGRAPH_RESERVED_PLACES 2
  48
  49
  50 /*
  51  * Special pre-defined edge labels.
  52  */
  53 #define HWGRAPH_EDGELBL_HW      "hw"
  54 #define HWGRAPH_EDGELBL_DOT     "."
  55 #define HWGRAPH_EDGELBL_DOTDOT  ".."
  56
  57 #include <asm/sn/labelcl.h>
  58 #define hwgraph_fastinfo_set(a,b) labelcl_info_replace_IDX(a, HWGRAPH_FASTINFO, b, NULL)
  59 #define hwgraph_connectpt_set labelcl_info_connectpt_set
  60 #define hwgraph_generate_path hwgfs_generate_path
  61 #define hwgraph_path_to_vertex(a) hwgfs_find_handle(NULL, a, 0, 0, 0, 1)
  62 #define hwgraph_vertex_unref(a)
  63
  64 /*
  65  * External declarations of EXPORTED SYMBOLS in hcl.c
  66  */
  67 extern vertex_hdl_t hwgraph_register(vertex_hdl_t, const char *,
  68         unsigned int, unsigned int, unsigned int, unsigned int,
  69         umode_t, uid_t, gid_t, struct file_operations *, void *);
  70
  71 extern int hwgraph_mk_symlink(vertex_hdl_t, const char *, unsigned int,
  72         unsigned int, const char *, unsigned int, vertex_hdl_t *, void *);
  73
  74 extern int hwgraph_vertex_destroy(vertex_hdl_t);
  75
  76 extern int hwgraph_edge_add(vertex_hdl_t, vertex_hdl_t, char *);
  77 extern int hwgraph_edge_get(vertex_hdl_t, char *, vertex_hdl_t *);
  78
  79 extern arbitrary_info_t hwgraph_fastinfo_get(vertex_hdl_t);
  80 extern vertex_hdl_t hwgraph_mk_dir(vertex_hdl_t, const char *, unsigned int, void *);
  81
  82 extern int hwgraph_connectpt_set(vertex_hdl_t, vertex_hdl_t);
  83 extern vertex_hdl_t hwgraph_connectpt_get(vertex_hdl_t);
  84 extern int hwgraph_edge_get_next(vertex_hdl_t, char *, vertex_hdl_t *, unsigned int *);
  85
  86 extern graph_error_t hwgraph_traverse(vertex_hdl_t, char *, vertex_hdl_t *);
  87
  88 extern int hwgraph_vertex_get_next(vertex_hdl_t *, vertex_hdl_t *);
  89 extern int hwgraph_path_add(vertex_hdl_t, char *, vertex_hdl_t *);
  90 extern vertex_hdl_t hwgraph_path_to_dev(char *);
  91 extern vertex_hdl_t hwgraph_block_device_get(vertex_hdl_t);
  92 extern vertex_hdl_t hwgraph_char_device_get(vertex_hdl_t);
  93 extern graph_error_t hwgraph_char_device_add(vertex_hdl_t, char *, char *, vertex_hdl_t *);
  94 extern int hwgraph_path_add(vertex_hdl_t, char *, vertex_hdl_t *);
  95 extern int hwgraph_info_add_LBL(vertex_hdl_t, char *, arbitrary_info_t);
  96 extern int hwgraph_info_get_LBL(vertex_hdl_t, char *, arbitrary_info_t *);
  97 extern int hwgraph_info_replace_LBL(vertex_hdl_t, char *, arbitrary_info_t,
  98                                     arbitrary_info_t *);
  99 extern int hwgraph_info_get_exported_LBL(vertex_hdl_t, char *, int *, arbitrary_info_t *);
 100 extern int hwgraph_info_get_next_LBL(vertex_hdl_t, char *, arbitrary_info_t *,
 101                                 labelcl_info_place_t *);
 102 extern int hwgraph_info_export_LBL(vertex_hdl_t, char *, int);
 103 extern int hwgraph_info_unexport_LBL(vertex_hdl_t, char *);
 104 extern int hwgraph_info_remove_LBL(vertex_hdl_t, char *, arbitrary_info_t *);
 105 extern char *vertex_to_name(vertex_hdl_t, char *, unsigned int);
 106
 107 #endif /* _ASM_IA64_SN_HCL_H */